摘要

The endangered Kaiser's Mountain Newt, Neurergus kaiseri, is a species endemic to the southern Zagros range in Iran. until now, N. kaiseri had been reported from only five localities. the present study describes eight new localities that increase the species' known range from 212 km(2) (minimum convex polygon) to 789 km(2) at elevations between 930-1395 meters. the localities are generally dispersed; nearest neighbor distances among the 13 localities average 4.61 km (range, 0.93-12.39 km). the streams are separated from one another by steep and rocky terrain with vegetation cover of mature open oak woodland in the west and sparse scrubland or thin oak-pistachio woodland in the central area and east, thus potentially isolating many of the populations from each other. we surveyed 12 of the 13 localities with newts 1-2 times and counted a total of 1,277 adults, post-metamorphic sub-adults, and larvae (mean per stream, 106; range, 2-650) in a total of 4.23 km of stream reaches. Most of the observed newts (86%) were found in just two of the localities.

  • 出版日期2013-12